i think itd be neat if they referenced the old comic art styles for certain shots or scenes while keeping the new smooth art style as the default.

Sprite mode could be used for viewports (like the sburb server view, trollian, fenestrated walls, etc). And also for visuals during scenes of exposition. Think of when terezi tries getting dave to stab his doomed self on the quest bed, with the long panel explaining how the two daves got to where they were. I think the show will probably need more scenes like that added in.

Hero/Hussnasty mode art could come back for redraws of certain panels as still shots. And maybe hero mode rough animations used briefly for some actions too.